The Chase: Felix Meets Felicity DS is a platforming game in the style of old school arcade platformers with a love story thrown into the mix. The Chase stars Felix and Felicity who have bumped into each other at the very start of the game. They instantly fall in love and you'll play as either one of the characters as they go through the games 40 plus levels to make it to their first date.
The game is kind of a cross between side scrolling Sonic games and Kirby's Canvas Curse. It sounds like an odd combination but it works.